Method for optical activation of the sensor surface, in particular for zero chlorine sensors
AssigneeProMinent GmbH
InventorsKlaus Koppert, Johannes Hartfiel, Holger Schopf
Life of this patent
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Abstract
An electrochemical sensor of a measuring device is cleaned and conditioned to optically activate the surface of the sensor. The conditioning agent is produced by irradiating an electrolyte with a physical-technological radiation source inside a measurement chamber including both working and reference electrodes.
Claims18
A method for cleaning and conditioning an electrochemical sensor of a measuring device for determining a constituent substance of a sample, wherein the measuring device comprises:
- a) an electrolyte containing a chemical substance,
- b) the electrochemical sensor that comprises a measuring chamber (5) in which a working electrode (2) and a reference electrode (6) are disposed, between which an electrical signal can be detected in a measuring interval, from which the constituent substance can be inferred, and
- c) a physical-technological radiation source,
- wherein the method comprises the following steps:
- producing a conditioning agent from the chemical substance by irradiating the electrolyte with the physical-technological radiation source, and
- reducing the conditioning agent at the working electrode (2).
An electrochemical measuring device comprising:
- a) an electrochemical sensor comprising a measuring chamber (5) in which a working electrode (2) and a reference electrode (6) are disposed, between which an electrical signal can be detected in a measuring interval, from which a constituent substance can be inferred, and
- b) a physical-technological radiation source,
- wherein the physical-technological radiation source is configured to produce a conditioning agent from a chemical substance of an electrolyte disposed in the measuring chamber by irradiating the electrolyte with the physical-technological radiation source.
An electrochemical measuring device comprising:
- a) an electrochemical sensor comprising a measuring chamber (5) in which a working electrode (2) and a reference electrode (6) are disposed, between which an electrical signal can be detected in a measuring interval, from which a constituent substance can be inferred, and
- b) a physical-technological radiation source;
- wherein the measuring chamber (5) is sealed with a selectively permeable membrane (4).
An electrochemical measuring device comprising:
- a) an electrochemical sensor comprising a measuring chamber (5) in which a working electrode (2) and a reference electrode (6) are disposed, between which an electrical signal can be detected in a measuring interval, from which a constituent substance can be inferred, and
- b) a physical-technological radiation source;
- wherein the physical-technological radiation source is disposed inside the measuring chamber (5);
- wherein said physical-technological radiation source is disposed in an electrode body which comprises the working electrode (2) and the reference electrode (6).
Dependencies are inferred from the claim text.